At Ebay you can buy Photoshop CS4 Extended license for some $20, and no subscription cost. I don't find CS4 is a limitation compared to CS6 or CC, at all.
Lightroom is more intuitive... but PS is powerful. Then just buy a CS4 bible book with advanced examples, also very cheap, and learn all, read every corner "with a magnifier" twice. If you like images then any time investment in PS is pure gold that will be worth for you for ever.
PS contains a lot of features that will open your mind. Completely worth.
Understand me, I don't like at all to be digitally intrusive in my analog shots, but knowing from alfa to omega all PS it empowers your total control. Then it's up to you to use that power for creative digital edition or to bring an analog capture to it's best without being intrusive aganist authenticity. Knowing all PS allows also that: total control without being intrusive.
Another approach is GIMP, for free.
Just IMHO.
Regards
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